Natural Radioactivity in Jordanian Construction Materials

The activities of 226Ra, 232Th and 40K radionuclides have been measured in marble chips, sand, hard rock and cement samples using gamma ray spectroscopy. Radium equivalent activities and external hazard indices have been calculated. These results indicate that all of the materials investigated in th...

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Bibliographic Details
Published in:Radiation protection dosimetry 1997-01, Vol.69 (2), p.143-147
Main Authors: Khatibeh, A.J.A.H., Ma'ly, A., Ahmad, N.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biological effects of radiation
Fundamental and applied biological sciences. Psychology
Radioprotection
Tissues, organs and organisms biophysics
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Summary:The activities of 226Ra, 232Th and 40K radionuclides have been measured in marble chips, sand, hard rock and cement samples using gamma ray spectroscopy. Radium equivalent activities and external hazard indices have been calculated. These results indicate that all of the materials investigated in this work, except marble chips from Amman, are acceptable for use as construction materials according to the criterion proposed by OECD countries. For some samples of marble chips from Amman, the external hazard index is found to be greater than unity. This should not pose any health hazard if it constitutes a smaller fraction of the construction materials.
ISSN:0144-8420
1742-3406
DOI:10.1093/oxfordjournals.rpd.a031895